Sage 300 2020 PU3. Local installs (C:\Sage300 folder). Recently upgraded from 2018 PU6.

Everything appeared to have gone fine except now, in specific companies (5 out of 36), when trying to open a G/L Journal Entry from the G/L Batch List we get a series of errors:

Description: Write down the message, error and source codes. Exit Sage 300 and Windows. Restart and retry the operation.
Code: 3.5531.0
Source:  09:09:00 - SvrView: GL0006

Description: Write down the message, error and source codes. Exit Sage 300 and Windows. Restart and retry the operation.
Code: 3.5007.0
Source:  09:09:00 - SvrView: GL0006

Description: Write down the message, error and source codes. Exit Sage 300 and Windows. Restart and retry the operation.
Code: 1.2136
Source:  09:09:00 - DS.dsGLJEH

Description: Error occurred when activating Sage 300 Data Source.
Code: 1.399
Source:  09:09:00 - DS.dsGLJEH

Description: Error occurred when activating Sage 300 Data Source.
Code: 1.399
Source:  09:09:00 - DS.dsGLBCTL

This is ONLY happening on companies that are GL only companies (Consolidation/Elimination). The "regular" companies have the same process working fine.

I've confirmed Data Activation for the affected companies and they APPEAR to have the same modules activated as prior to the upgrade.

I've ran as Administrator, re-registered the DLLs (RegAcc.exe as Administrator). Repaired install.

Any other ideas?